Assessment of Techcrete : a concrete repair material and joint sealant.

Details

• Creators:
  Tremblay, Jason P. ; Colgrove, George W.
• Corporate Creators:
  Vermont. Agency of Transportation. Materials and Research Section
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Concrete pavements
  • Pavement maintenance
  • Joint sealing
  • Evaluation
  • Field studies
• Publication/ Report Number:
  2013-11
• Resource Type:
  Tech Report
• Geographical Coverage:
  Vermont
• Corporate Publisher:
  Vermont. Agency of Transportation. Materials and Research Section
• Abstract:
  Joint sealing and resealing is a commonly performed concrete pavement maintenance activity that serve ; s ; two ; purposes. First, it minimizes water infiltration; second, it prevents intrusion of solid materials in the joints. There ; are many sealants available for resealing concrete joints including hot ; - ; poured, rubberized asphalt sealants and ; silicone sealants ; . According to a Federal Highway Administration technology brief, “the hot ; - ; poured, rubberized ; asphalt sealants are less expensive than silicone materials but generally have shorter life expectancies (typically, 4 ; to 8 years for hot ; - ; poured sealants and 5 t ; o 10 for silicone sealants) 1. ; In the fall of 2007, the City of Winooski resealed some of the pavement joints located along US Route 2 and 7 as ; part of their periodic preventative maintenance work, with a new hot ; - ; poured product, TechCrete, manufactured ; by ; Crafco. According to Crafco, this flexible material is a hot ; - ; poured product for concrete repairs, which provides high ; tensile strength and high compressive resistance. It is comprised of a combination of several resins, polymers, ; and aggregate. In ad ; dition, it has proven to provide a long ; - ; term life span in most applications. According to the ; manufacturer, once the material has properly cured, the materials will not de ; - ; bond or crack while remaining flexible ; during the expansion and contraction of the ; adjacent concrete slabs. Additionally, the affected lane can be open to ; traffic within one hour of application. ; In 2008, Crafco contacted VTrans to have TechCrete added to the Approved Products list. This study is an ; evaluation of the product. VTran ; s selected the Winooski site and a site in South Burlington where a concrete ; pavement was placed in 1997 that exhibited similar deterioration, to conduct a field evaluation of the product.
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• Format:
  PDF
• Funding:
  2008-R-02 (MOD)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28322/dot_28322_DS1.pdf
• File Type:
  [PDF - 1.64 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:2b432ddf87874bbe10e7b155894b8dc05f9160a30f3baa674d2e24f8d2410a19